Can I Take Emergency Contraceptive Pills While on Birth Control?

If it has been less than seven days since taking the first dose of the emergency contraceptive pill, can I take the emergency contraceptive pill again?

Hello, I started taking the birth control pill for the first time on June 3rd.
I had unprotected intercourse on June 6th, but there was no ejaculation.
However, I am still concerned and would like to take emergency contraception.
Can I take both types of birth control pills at the same time? If I do, will it affect the effectiveness of the birth control pill I am taking or the date when it becomes effective? Thank you.

A, 20~29 year old female. Ask Date: 2021/06/06

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, theoretically, there is no need to take emergency contraception.
However, if you choose to take it, it won't have any negative effects.
Nevertheless, you should continue taking your regular contraceptive pills as usual.
Wishing you good health.

Reply Date: 2021/06/06

More Info

When it comes to the use of emergency contraceptive pills (ECPs) while on regular birth control pills, it's important to understand how these medications work and their potential interactions. First, let's clarify what each type of medication does. Birth control pills are designed to prevent ovulation, thicken cervical mucus, and thin the uterine lining to prevent pregnancy. Emergency contraceptive pills, on the other hand, are intended to prevent pregnancy after unprotected intercourse or contraceptive failure, primarily by delaying ovulation.

In your case, since you started taking birth control pills on June 3 and had unprotected intercourse on June 6, you are within a time frame where your birth control may not have fully taken effect yet. Most combination birth control pills take about 7 days to become effective if you start them at a time other than the first day of your period. If you are concerned about the risk of pregnancy from the unprotected intercourse, taking an emergency contraceptive pill is a reasonable option.

Now, regarding your question about taking both types of pills simultaneously: Yes, you can take emergency contraceptive pills while on regular birth control pills. The emergency contraceptive will not significantly interfere with the effectiveness of your ongoing birth control method. However, it's essential to note that taking ECPs may cause some temporary side effects, such as nausea, fatigue, or changes in your menstrual cycle, but these are generally short-lived.

It's also worth mentioning that while ECPs are effective, they are not intended to be used as a regular form of contraception. They are most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but can be taken up to 5 days after. The sooner you take them, the better the chances of preventing pregnancy.

In terms of your concern about the effectiveness of your birth control pills, taking ECPs should not affect the contraceptive effect of your regular birth control pills once you continue taking them as prescribed. However, it is advisable to use a backup method of contraception, such as condoms, for at least 7 days after taking ECPs to ensure maximum protection.

In summary, you can safely take emergency contraceptive pills while on birth control. Just ensure that you continue taking your regular birth control pills as directed. If you have any further concerns or experience any unusual symptoms, it’s always best to consult with your healthcare provider for personalized advice. They can provide you with the most accurate information based on your individual health needs and circumstances.

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